Datasheet

9
6
3
0
-3
-6
-9
CapacitiveLoad(pF)
R ( )W
S
1 10 100 1k
V =0.5V
O PP
C =100pF
L
C =47pF
L
C =10pF
L
C =22pF
L
R
F
+
-
1kW
(1)
C
L
V
IN
V
OUT
R
S
NOTE:(1)1k isoptional.W
VCA821
100
10
1
CapacitiveLoad(pF)
R (W)
S
1 10 100 1k
0.1dBFlatnessTargeted
200
100
10
Frequency(Hz)
OutputVoltageNoiseDensity(nV/
)
ÖHz
100 1k 100k 1M10k 10M
V =+2V
G
V
G
= 0V
V =+1V
G
10
1
Frequency(Hz)
InputVoltageNoiseDensity(pA/ )ÖHz
100 1k 10k 10M100k 1M
VCA821
SBOS407B – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ± 5V, A
VMAX
= 6dB (continued)
At T
A
= +25 ° C, R
L
= 100 Ω , R
F
= 453 Ω , R
G
= 453 Ω , V
G
= +2V, V
IN
= single-ended input on +V
IN
with – V
IN
at ground, and
SO-14 package, unless otherwise noted.
RECOMMENDED R
S
vs CAPACITIVE LOAD FREQUENCY RESPONSE vs CAPACITIVE LOAD
Figure 29. Figure 30.
OUTPUT VOLTAGE NOISE DENSITY INPUT CURRENT NOISE DENSITY
Figure 31. Figure 32.
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